Our Sites: GlobalSpec.com | GlobalSpec Electronics | CR4
Welcome to GlobalSpec!
Find parts, products, suppliers, datasheets, and more for:

AC Units

 

Find Suppliers by Category

AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.  
Search by Specification | Learn More

Conduct Research Top

  • AC Motors
    A synchronous and synchronous motors are the two main categories of ac motors. The induction motor is a common form of asynchronous motor and is basically an ac transformer with a rotating secondary. The primary winding (stator) is connected to the power source and the shorted secondary (rotor
  • Efficient AC
    and are quite challenging for manufacturers. Without the use of more advanced electronic technology these standards may be potentially impractical. Such technology includes variable-speed drives powering either a standard ac induction or brushless dc compressor. Modern air conditioners incorporate power factor
  • Interfacing to AC Power Lines
    This application note describes a simple method for measuring parameters from the AC power line. Parameters such as zero crossing, frequency, and relative phase can be measured. This method is useful for measurements on 50, 60, and 400 Hz power systems with voltages up to several hundred volts
  • Operational Amplifier AC Specifications and Applications
    This application note defines the ac specifications of voltage feedback operational amplifiers (Op Amps). Directly following these definitions, related amplifier circuits are given where the ramifications of the particular specifications causes less than optimum circuit performance
  • Braking and Regenerative Energy with AC Drives
    What is Regenerative Energy? When a motor turns faster than the commanded speed as set by its AC variable speed drive, the motor in effect acts as a generator. An example of this would be the control of an elevator car as it descends. With the help of gravity, the load will readily lower. In fact
  • Solid-State ac Power Sources for Transformer Testing
    is a set of contactors so that the power-supply output can be switched to power up the correct test equipment. These solid-state ac-power sources offer new technical and speed advantages for transformer test floors. Electronic protection and shutdown circuits make the units immune to load-induced
  • Using Regenerative Converter Units to Recover Over Voltage Energy in AC Drive Systems (.pdf)
    flows into the drive, and is manifested as increased DC bus voltage in the inverter. Using Regenerative Converter Units to Recover. Over Voltage Energy in AC Drive Systems. ABSTRACT. Regeneration occurs in an AC variable frequency drive system when the load overhauls. the motor. This can occur when
  • AC vs DC Power in Data Centers and Wiring Closets
    . In a new deployment, however, it is worth considering. Here are some of the pros and cons: Pros: -Centralized conversion of AC to DC cuts heat losses and increases efficiency. Less power lost, less heat generated. -Simpler power supply units result in less chance of a power supply failure

Engineering Web Search: AC Units Top